Tor - The Onion Router

Posts about the non-technical aspects of Tor's hidden services – such as individual .onion sites and their content – belong in /r/onions. Posts concerning criminal marketplaces may be removed from /r/Tor.

News articles that do not mention Tor are usually off-topic; /r/Tor is not for general news about privacy or security.

Adding Guard flag might have to do something with it. Recent Tor clients will pick some entry guards and use them as entry point (IIRC it's a measure against timing correlation attack). That could hypothetically cause change in traffic, but Tor network is large enough that many other things could influence it.